Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x+4=-1
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Equation sin(pi*x)=-1
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Equation x^2+10*x+16=0
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Equation x^3-27=0
- Express {x} in terms of y where:
- 18*x-6*y=7
- 7*x-19*y=17
- 3*x-14*y=-2
- 16*x+11*y=4
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Identical expressions
- x.diff(x)*y- nine *x=y^ four *cos(four *y)
- x.diff(x) multiply by y minus 9 multiply by x equally y to the power of 4 multiply by co sinus of e of (4 multiply by y)
- x.diff(x) multiply by y minus nine multiply by x equally y to the power of four multiply by co sinus of e of (four multiply by y)
- x.diff(x)*y-9*x=y4*cos(4*y)
- x.diffx*y-9*x=y4*cos4*y
- x.diff(x)*y-9*x=y⁴*cos(4*y)
- x.diff(x)y-9x=y^4cos(4y)
- x.diff(x)y-9x=y4cos(4y)
- x.diffxy-9x=y4cos4y
- x.diffxy-9x=y^4cos4y
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Similar expressions
- x.diff(x)*y+9*x=y^4*cos(4*y)
x.diff(x)*y-9*x=y^4*cos(4*y) equation
The teacher will be very surprised to see your correct solution 😉
The solution
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//x for 0 = 1\ || | 4 |<1 for 1 = 1|*y - 9*x = y *cos(4*y) || | \\0 otherwise/
$$- 9 x + y \left(\begin{cases} x & \text{for}\: 0 = 1 \\1 & \text{for}\: 1 = 1 \\0 & \text{otherwise} \end{cases}\right) = y^{4} \cos{\left(4 y \right)}$$
The graph